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Finding the Fourth Proportional to 48,138.80, 72,235.80 and 25,952.08

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Solution

The fourth proportional to 48,138.80, 72,235.80 and 25,952.08 is: 38,943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,138.80 : 72,235.80 = 25,952.08 : x
  2. Step 2: Convert to fraction form
    48,138.80/72,235.80 = 25,952.08/x
  3. Step 3: Cross multiply
    48,138.80x = 72,235.80 × 25,952.08
  4. Step 4: Simplify right side
    48,138.80x = 1,874,669,260.46
  5. Step 5: Solve for x
    x = 1,874,669,260.46/48,138.80
  6. Step 6: Final answer
    x = 38,943.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.